PEQUANNOCK — The parents of a 3-year-old girl who drowned two summers ago at Pequannock Valley Park have filed a wrongful death lawsuit against the township, lifeguards and park managers.

Parents Scott and Denise Maloney from the Pompton Plains section of the town, filed the lawsuit in Superior Court, Morristown, on behalf of the estate of their daughter, Sienna Maloney, who drowned close to 4 p.m. on July 11, 2016 in Woodland Lake at the township-owned park.

The suit, filed by attorney Neil S. Weiner, names 50 lifeguards and parks and recreation personnel as defendants. The complaint claims lifeguards failed a duty to detect the child submerged in the water, failed to supervise and save her.

Pequannock attorney Robert Oostdyk said the lawsuit has been turned over to the township's insurance carrier.

The complaint charges the township failed a duty "to maintain a safe swimming environment" at the park and to adequately train lifeguards on duty. It seeks monetary damages for emotional distress suffered by Sienna's sister, Camryn Maloney, who was at the lake that day. It also seeks damages for the suffering Sienna endured while drowning and the loss of Sienna's companionship and future guidance and services sustained by her parents.

According to police reports, a 911 caller reported a possible drowning at 3:52 p.m. on July 11, 2016. Police and paramedics from Chilton Medical Center rushed to the lake to find CPR in progress on the toddler. She was brought to Chilton but efforts to resuscitate her failed and she was pronounced dead at 5 p.m., police reports said.

Denise Maloney told police Sienna was playing near the water without her "swimmies" or floating devices on. The mother told police, according to police reports, she was watching her children play when she realized she had lost sight of Sienna. She went to the water's edge and asked a friend if she had seen the toddler before she notified a lifeguard, police reports said.

A lifeguard, one of 14 at the park that day, activated an emergency response.

James Shaver, Jr., a 21-year-old lifeguard who told police he was on break and practicing his dives in the lake, pulled the girl out of the water, records show. As Shaver climbed the water ladder, he heard the emergency announcement and advised a supervisor a search had started. He told police he took a few steps into the water, saw the child's bathing suit, dove in and retrieved her, reports said.

Shaver told police he took spinal injury precautions removing the non-breathing Sienna from the lake. He began to perform CPR, police reports show.

Police interviewed multiple people at the lake, including some who were videotaping their children, but did not find anyone who saw the child in distress in the water, police reports show.